Best High Schools in Zip Code 06515

Zip code 06515 in New Haven, Connecticut, is served by a single public high school: Common Ground High School, which enrolls 221 students in grades 9–12. Because this school operates as its own Common Ground High School District, all district-level statistics are identical to the school's own figures. The school offers a favorable 9.9:1 student-teacher ratio, which supports smaller class sizes and more individualized attention for a relatively small student body.

In terms of performance, Common Ground has consistently earned a 2-star rating, placing it in the 35th–38th percentile among Connecticut high schools across multiple ranking years. Its graduation rate is 88.9%, slightly below the state's 91.2%. However, the most notable concern is chronic absenteeism: 31.7% of students are chronically absent, nearly double the state rate of 16.4%. Academic proficiency also trails state averages, with only 22.2% of 11th graders proficient in SAT math (versus 31.1% statewide) and 30.2% proficient in NGSS science (versus 47.7% statewide). Additionally, 64.25% of students qualify for free or reduced-price lunch, and per-student spending is $17,053, reflecting a high-need population with substantial financial resources devoted to each learner.

For parents exploring options in this zip code, Common Ground presents a mixed profile. The low student-teacher ratio and per-student spending above $17,000 indicate real structural investment, and the graduation rate—despite being below the state average—shows that many students do complete high school even when test proficiency is low. The stability of its ranking over seven years suggests a consistent, but not improving, academic trajectory. The biggest red flag is chronic absenteeism, which likely affects both test scores and long-term student success. As the only high school in 06515, Common Ground offers a small, community-oriented environment, but families should weigh the attendance challenges and below-average math and science proficiency against the school's strengths in individualized support and graduation efforts.